Demountable-tube radiator



C. L. CESSNA AND J V. WARDEN.

DEMOU,NTABLE TUBE RADIATOR APPLICATION FILED JULY 28.1

Patented Mar. 1, 1921.

6'. L. (75.9mm

J. KWARDEJY Jaw UNITED STATES PATENT osr ce.

CHARLES LJCESSNA, 0F WEBSTER CITY, AND JOHN V. WARDEN, BLAIRSBURG,

IOWA J V provide convenient means for separatingthe.

tanks of a radiator.

A. further objectof this invention isto provide convenient means forremovabl'y and replaeeably connecting the tanks of a radiator. I

A further object of this invention is to provide a construction for convenient removal, replacement and substltutlon of a radiator tiib'. s

, drawing, in which- A further object of this jiiventionjis to provide convenient means, other than solder, 'for' removably and replaceably connecting a radiator tube to the tanks of a radiator.

A further object of this invention is to provide improved construction for the bottom of the uppertank' of a radiator.

'A further object of this invention is to provide animproved construction for a radiator tube adapting it to be removed and replacedby' means 'of a wrench of peculiar form without restricting pas age through said tube. 7

Our invention consists in the construction, arrangement and combination of elements hereinafter set forth,"point'ed out our claims and illustrated by the accompanying Figure 1 is a front elevation and Fig. 2 a side elevation of a radiator embodying our improvements. Fig.3 is a cross-section on the indicated line f33 of Fig. 2. Fig. 4 l is a vertical sectionon the indicated line 4.-4 ofFig. 3, onan enlarged scale, -portions being omitted to economize space. Fig. 5 is a bottom end view of one of the tubes. Fig. 6 is an elevati n and Fig. 7 is a bottom end 'yiew, on an enlar ed scale,of a wrench In the construction ofjthe device as shown the numerallOdesignates a bottom tank, 11 an-upper tank and 12 any one of a series I Specification 01' Letters Patent.

any suitable manner such as with a common oftubesconneeting and providingfor a circulation of cooling IIlQCl1L1H1,'S1lCh as water,

'Patented Mar. 1, 1921;

Applicationlfiled July 28, 1919. 7 Serial No. '3 13,756. l

between the tanks. The bottom tank 10'may V be of any desired form and construction and preferably has the characteristic of a plane top plate 13 provided with a series of threaded or tapped holes, one for each of the tubes 12. The top tank 11 may be'of any desired form and construction; but preferably has two particular characteristics, about to be described. One characteristic of the upper tank 11 is that itis formed with a removable and replaceable top plate 14 secuied to the walls of the tank by cap screws 15 operable. from the exterior of the tank and sealed in gasket; This isto give-access conveniently it is formed withfa bottom plate16 having a series ofde'pressed or depending bo'sses'17,

which are struck orpressed outwardly therefrom and are apertured centrallyin their 1; f

bottoms to receive the tubesf12 -loosely therein; The bottom tank loand uppertan'k .to the interior of the tank 11 for manipulaftion, on occas1on,'of the'tubes12. The other desirable characteristicof the tank 11 is'that 11 are connectedsuitably at their corners f by stays 18, in this instance four innumber, which stays aresecured in any desired manhave shown the ends of the stays soldered 'to vthe outer surfaces of the tanks 10, 11 in ner at their ends to and" serve to separate or space as well as connectfthe tanks. We

witha tool and be re-soldered conveniently as'desired. Each tube 12 is formed with a threaded end portion adapted to pass freely through a hole of a'boss 17. andbe screwed into a tapped hole inthe plate 13, and a nonthreaded end portion adapted to lit loosely insa'id hole in the boss. To facilitate placing and removing the tubeby screwingin the plate 13, a thickened portion 1.9.is'formed in and fills'a segment of the lower end portion ofthe tube: 12, and theinnerwall of said thickened portion is inclined toward extend longitudinally through it, is formed 7 with a notch 21in one end adaptedto, ac-

ioof i, A

commodatethe boss 19 and interengagewithi said boss in such manner as to prevent inde- 1 pendent rotation of the wrench and insure turning of the tube thereby. The wrench is formed with a flattened end portion or head 22 adapted to be engaged by pliers to manually turn the wrench. Through the use of the tool the tubes may be unseated or seated, and when seated said tubes preferably have their upper ends flush with the top surface of the bottom plate ofthe tank 16, in order that the tank may drain properly on occasion. Packing 23 is placed on the upper surface of the bottom of each boss 17 V (Fig. 4:) and a gland 24: is screwed in each boss and applies a pressure to said packing, the boss being interiorly threaded to receive the gland. In such manner the upper end portion of the tube 12is sealed in its boss. In order that the gland 24: may seat with its upper end flush with the upper end of the tube, said gland is formed with spanner seats or notches 25 adapted to receive a spanner formed on the head 22- of thewrench. The spanner maybe employed to seat or unseat the glands, and is manipulated by turning-the wrench as with pliers. The thickened portion 19'restricts the bore of the tube 12 normally and would obstruct the desired flow of cooling medium through said tube. To avoid such'condition, the tube 12 is formed with anarcuate notch 26 diametrically opposite the thickened portion 19,

which notch has acapacity compensatory of the normal restriction caused by the thick ened portion.

Any desired number of tubes 12 may be 7 employed and they preferably are arranged in parallel rows, the number of which rows also may vary.

7 Under the construction as illustrated and described, the tubes 12 may be removed and replaced or substituted by others selectively, or, either tank may be removed, repaired and replaced or substituted by another with a minimum expenditure oftime and labor, and the assembled device is effective in providing an air-cooled element of a watercooling system for explosive engines.

.We do not wish to be understood as limited to the exact construction and arrange-' ment of parts as shown or described, since the same may be modified in many particu lars without departing from our invention within the scope of the appended claims.

We claim as our invention. I 1. A radiator comprising upper and lower tanks spaced apart and tubes detachably connecting and communicating at op posite ends with said'tanks, the connection between the tubes and the lower tank being a threadedjoint, each tube being formed with .an interior engaging means adapted tobe engaged by v a wrench passed through a the tube.

2. A radiator comprising upper and lower tanks spaced apart and tubes detach- .tube restriction of said engaging means,

.a threaded joint, each tube being formed with engaging means located within the threaded lower end thereof and also formed with a notch opposite said engaging means, said engaging means being adapted to be engaged by a wrench extending within said tube.

4. A radiator comprising upper and lower-tanks spaced apart and tubes detachably connecting and communicating at opposite ends with said tanks, the upper tank being formed with apertured depending bosses in its bottom through which said tubes extend, and packed glands mounted in said bosses and surrounding. and sealing said tubes to said bottom, no portion ofany of said tubes or glands projectingabove the horizontal plane of the upper faceof said bottom. v r i p 5. In a radiator, a tank formed with a bottom plate having a series of apertured bosses, said bosses extending belowsaid plate and being interiorly threaded, tubes mounted loosely in said bosses and extending through the apertures thereof, packing in said bosses .around said tubes, a gland screwed in each boss, each gland being foamed with spanner notches in its upper en v 6. A radiator tube formed with a threadcd-end portionand also formed with an integral engaging means within said threaded end portion adapted to be engaged by a wrench extending within said tube. V i

7. A radiator tube formed with a. threaded end portion and also formed with an integral segmental engaging means within said threaded end portion adapted to be engaged by a wrench extending withinsaid tube. 1 V 4 8. A radiator tube formedwith a threaded end portion and also formed with an integral engaging means within said threaded end portion adapted to be engaged by a wrench extending within said tube, and also formed with a notch-compensatory to the Signed at Webster City, in the county of Hamilton and State of Iowa, this 30th day of June, 1919. CHARLES L. CESSNA;

JOHN V, .WARDEN. 

